Publication detail

Magnetorehological fluid seal with minimum friciton torque

KUBÍK, M. MACHÁČEK, O. MAZŮREK, I.

Original Title

Magnetorehological fluid seal with minimum friciton torque

English Title

Magnetorehological fluid seal with minimum friciton torque

Type

conference paper

Language

en

Original Abstract

The paper deals with design and tests of MagnetoRheological Fluid seal (MRFs) using innovative conception of magnetic circuit. The common design of magnetic seal uses ferrofluid. Low friction torque and low burst pressure are typical for this kind of seals. Replacement of the ferrofluid by magnetorheological fluid increases the burst pressure; however, the friction torque increase too. The optimum for sealing is low friction torque and high burst pressure. The new design of MRFs described in this paper meets both requirements; is based on gradient-pinch mode. The friction torque and burst pressure of this type of design and common design of MRFs were tested and compared. The new design of MRFs achieved 20 times lower friction torque that current solution MRFs. The developed MRFs combines the benefits of common FFs and MRFs.

English abstract

The paper deals with design and tests of MagnetoRheological Fluid seal (MRFs) using innovative conception of magnetic circuit. The common design of magnetic seal uses ferrofluid. Low friction torque and low burst pressure are typical for this kind of seals. Replacement of the ferrofluid by magnetorheological fluid increases the burst pressure; however, the friction torque increase too. The optimum for sealing is low friction torque and high burst pressure. The new design of MRFs described in this paper meets both requirements; is based on gradient-pinch mode. The friction torque and burst pressure of this type of design and common design of MRFs were tested and compared. The new design of MRFs achieved 20 times lower friction torque that current solution MRFs. The developed MRFs combines the benefits of common FFs and MRFs.

Keywords

Magnetorheological fluid seal, MR fluid seal, magnetic seal, magnetic shaft seal, liquid o-ring

Released

14.05.2018

Publisher

Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences

Location

Praha

ISBN

978-80-86246-88-8

Book

ENGINEERING MECHANICS 2018

Pages from

445

Pages to

448

Pages count

4

URL

BibTex


@inproceedings{BUT150926,
  author="Michal {Kubík} and Ondřej {Macháček} and Ivan {Mazůrek}",
  title="Magnetorehological fluid seal with minimum friciton torque",
  annote="The paper deals with design and tests of MagnetoRheological Fluid seal (MRFs) using innovative conception of magnetic circuit. The common design of magnetic seal uses ferrofluid. Low friction torque and low burst pressure are typical for this kind of seals. Replacement of the ferrofluid by magnetorheological fluid increases the burst pressure; however, the friction torque increase too.  The optimum for sealing is low friction torque and high burst pressure. The new design of MRFs described in this paper meets both requirements; is based on gradient-pinch mode. The friction torque and burst pressure of this type of design and common design of MRFs were tested and compared. The new design of MRFs achieved 20 times lower friction torque that current solution MRFs. The developed MRFs combines the benefits of common FFs and MRFs.",
  address="Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences",
  booktitle="ENGINEERING MECHANICS 2018",
  chapter="150926",
  howpublished="print",
  institution="Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences",
  number="1",
  year="2018",
  month="may",
  pages="445--448",
  publisher="Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences",
  type="conference paper"
}